Pushing the limits is the focus of the May issue of CQ … from contesting in the snows of Siberia to attempting to set a new record on 78 GHz in Arizona. We start with an inside look at the multi-multi contest station and operation at RW0A in Siberia during last year's CW weekend of the CQ World Wide DX Contest; followed by the contest results themselves and stories of how competitors push themselves, and each other, to do their best … or maybe even better!

At the other end of the radio spectrum, VHF-Plus Editor Tony Emanuele, K8ZR, shares his recent experience of traveling to Arizona with several fellow microwave enthusiasts to attempt a new world distance record on the "way up there" band of 78 GHz. Plus, we've got the rules for the 2019 CQ World Wide VHF Contest, an opportunity to challenge your VHF operating skills even if you aren't on 78 GHz! (The CQWW VHF Contest is on 6 and 2 meters only.)

Also among our columns, speaking of competing and pushing your limits, "Homing In" editor K0OV brings news of the 2019 US and IARU Region 2 Amateur Radio Direction Finding (ARDF) Championships coming up this summer in North Carolina; Contesting Editor K3ZJ looks at the operating challenges posed by the CQ WPX CW Contest weekend in late May as well as several different Field Day competitions, and DX Editor N2OO challenges DXpedition planners to "think small" and emulate the pioneers of DXpeditioning.

"Math's Notes" editor WA2NDM looks at new developments with "super capacitors" that can store a charge long enough to substitute for batteries in some uses, and which charge almost instantly. Emergency Communications Editor W4ALT looks at amateur radio's role in public health disasters, and Mobiling Editor AA6JR takes us back to the days of customized vans – this time with a ham radio twist!

On the Cover: Four members of the multi-multi team at RW0A during last year's CQ World Wide DX Contest CW weekend. From left, RW0AR, RZ0AT, RA0R and UA0APV. Their story, as well as the complete CQWW CW Contest results, are in the May issue of CQ. (Cover photo by Leonid Lishnev, RA0AM)